BEST BST-9907 7 in 1 Torque Screwdriver Set with S2 Screwdriver Bits1. No Injury to Screws Durable S2 Steel Magnetic Bit Anti slip Handle 2. Preventing screws from being screwed with excessive force and injuring the screws 3. Torque: 0. 3kgf. cm 4. Configured with a variety of different shapes and specifications of the batch head, replaceable for desktop computers, notebooks, mobile phones, cameras, clocks, glasses, tablets, keyboards, mice, drones, toys, home appliances and other products maintenance and disassembly.